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H.222.0 | MPEG-2 Systems extension for SVC



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7H.222.0 | MPEG-2 Systems extension for SVC

Design features:



  • T-STD / P-STD model slightly extended: No additional buffer requirement

  • Transport of AVC in its own PID

  • Prefix NAL units are part of AVC PID

  • SVC “part” of AVC stream in one or more PIDs

  • New stream type 0x1F for SVC sub-bitstreams

  • Hierarchy_Descriptor for dependency indications

  • New SVC_Extension_Descriptor for scalability information

  • Access unit delimiter (AUD) like NAL unit in SVC sub-bitstreams

  • Access unit reassembly based on DTS and SVC AUD

  • For the temporal scalability case, a pointer to DTS of “lower” sub-bitstream is added, if needed

  • SVC subset SPS and SVC PPS go into SVC PID

  • SVC-related SEI messages may go into SVC sub-bitstream, requires in-Access Unit re-ordering

Status:


All open issues and NB comments addressed. Some editing still required. Final draft of text of ISO/IEC 13818-1:2007/FDAM3 with 3 weeks editing period.
The text of the current draft was briefly reviewed. Implementation available? yes, by FT and HHI. Will be presented at 16:00 (Thursday).
The JVT has approved the document.


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